Suspension Help

1WAY2GO · 01-08-2010, 06:38 PM

I have my first 5th wheel trailer on order, & need input on the pros & cons of installing either Firestone Airbags or Timbren rubber bumper supports.
Anyone have advice for me?

450Donn · 01-08-2010, 08:26 PM

Rule number one. Neither product will increase the trucks GVWR or GCWR.
Those that have Timbrens generally like them. Same for air bags. Personally I prefer air bags. You can vary the air pressure in the bags to create a customized ride effect. Timbrens you cannot adjust. Once installed they will come into contact with the frame after your load is sufficient. If you have only a partial load and they are close, going over a rough road can create a jarring effect. You will probably hear some people claim that air bags leaked. IMHO that is a rumor more than truth. Can an air bag fail? YUP! But do you see Timbrens on class 8 trucks or trailers? NOPE! Large truck use and have for years used air bags

TXiceman · 01-09-2010, 08:18 AM

As Don pointed out, the air bags or Timbrens will not increase the weight carrying capacity of your 3/4 ton truck. They will be a crutch and prop the rear end up. Start by weiging your truck and working the numbers from that point.

Work out the weight information on this site. There is a spreadsheet at the bottom of the page.

By the way, what kind of trailer did you order?

Ken

wingnut60 · 01-09-2010, 10:10 AM

I believe either of the products will work. I used AirLift bags on my '02 250 and on my '04 350 SRW--one side developed a leak that the installer could not locate. I then went to Timbrens on the '04 and moved the set to the '07 DRW I had later. Now, with the 450, I don't need either.

I liked the air bags but not the airing/deflation needed loaded/unloaded--having the compressor/gauge would simplify that problem. The Timbrens are install in 15 min/side and forget them.

IF YOU ARE INTERESTED in a set of Timbrens for your 250, I have them at a good price. Email me at joejd at aol.com or call 817 two three nine 0514. I also have the airbags too, if you want them for next-to-free + shipping.

Joe

1WAY2GO · 01-09-2010, 04:00 PM

Cougar 318SAB
I know it will be at or slightly above GVWR. I've read the info you suggested but this is the hand I have to work with.

wingnut60 · 01-09-2010, 07:57 PM

Been looking at the Keystone site--the only thing I would suggest for the trailer, if you can still do it, is change to the E tires--should be a cheap upgrade if you get them as an option.
Joe

1WAY2GO · 01-09-2010, 08:10 PM

Joe,
Trailer has "Big Mountain" option which includes 16" tires w/7K axles & shocks.

wingnut60 · 01-09-2010, 09:50 PM

Yes, but are the tires 16" Load Range E? Looking at the specs, only one model came with them standard. If that option pkg includes the Es, that's good. D tires on that size trailer are too close to rated weight, in my opinion.
Joe
Thinking a little better, 7K axles will probably have the Es.